EP 2351736 A1 20110803 - Solutions of thioethers and their use in the production of leather.
Title (en)
Solutions of thioethers and their use in the production of leather.
Title (de)
Lösungen von Thioethern und ihre Verwendung zur Herstellung von Leder
Title (fr)
Solutions de thioéthers et leur utilisation dans la fabrication de cuir
Publication
Application
Priority
- EP 09720794 A 20090309
- EP 08152701 A 20080313
- EP 11163456 A 20090309
Abstract (en)
Preparing leather, comprises treating chromium(III)-containing semi-finished product in an aqueous environment with one or more thioethers comprising at least 10C per molecule, or with a substituted 1,3,5-tris-(4-hydroxy-benzyl)-[1,3,5]triazinane-2,4,6-trione compounds (III). Preparing leather, comprises treating chromium(III)-containing semi-finished product in an aqueous environment with one or more thioethers comprising at least 10C per molecule, or with a substituted 1,3,5-tris-(4-hydroxy-benzyl)-[1,3,5]triazinane-2,4,6-trione compounds of formula (III). R 2>isoamyl, tert.amyl, isopropyl, tert.butyl or sec.butyl; R 6>phenyl, benzyl or 1-4C-alkyl; and w : 0-1. Independent claims are included for: (1) a solution of thioether, which is a sulfur containing compound of formula (X 1>-A 3>-C(=O)-A 1>-S-A 2>-C(=O)-A 4>-X 2>) (I), or a substituted 2-(2-hydroxyphenyl)sulfanylphenol compound of formula (II) in a solvent, preferably glycerin or oligomer of ethylene glycol, or a mixture of solvents containing glycerin or one or more oligomers of ethylene glycol; and (2) the leather obtained by the above process. X 1>, X 2>10-40C-alkyl, 10-40C-alkoxy or 6-14C-(hydroxy)aryl (all optionally substituted by 1-4C-alkyl), or nitrogen containing heterocycle; A 1>-A 4>spacer group of formula (CHR 1>) n; R 1>1-4C-alkyl or H; n : 0-10; R 3>R 2>; and R 4>, R 5>H, phenyl, benzyl or 1-4C-alkyl. [Image] [Image].
Abstract (de)
Verfahren zur Herstellung von Leder, dadurch gekennzeichnet, dass man Cr(III)-haltige Halbzeuge in wässrigem Milieu mit einem oder mehreren Thioethern mit mindestens 10 C-Atomen pro Molekül behandelt.
IPC 8 full level
C14C 3/06 (2006.01); C07C 321/30 (2006.01); C07C 323/00 (2006.01); C07C 323/12 (2006.01); C07C 323/20 (2006.01); C07C 323/52 (2006.01); C14C 9/00 (2006.01)
CPC (source: EP)
C07C 323/12 (2013.01); C07C 323/20 (2013.01); C07C 323/52 (2013.01); C14C 3/06 (2013.01); C14C 9/00 (2013.01)
Citation (applicant)
- WO 2007063047 A1 20070607 - TFL LEDERTECHNIK GMBH [DE], et al
- DE 19860610 A1 20000706 - SCHILL & SEILACHER [DE]
- DE 10028142 A1 20011220 - BOEHME CHEM FAB KG [DE]
- WO 0168584 A2 20010920 - BASF AG [DE], et al
- EP 0459168 B1 19950405 - BASF AG [DE]
- WO 03023069 A1 20030320 - BASF AG [DE], et al
Citation (search report)
- [A] US 2007027243 A1 20070201 - WEGMANN ALEX [CN], et al
- [A] WO 2007063047 A1 20070607 - TFL LEDERTECHNIK GMBH [DE], et al
- [XA] DATABASE WPI Week 198844, Derwent World Patents Index; AN 1988-310733, XP002642961
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009112453 A1 20090917; AT E532882 T1 20111115; BR PI0909434 A2 20151215; CN 101970694 A 20110209; EP 2257649 A1 20101208; EP 2257649 B1 20111109; EP 2351736 A1 20110803; EP 2351736 B1 20130306; ES 2376412 T3 20120313; ES 2404180 T3 20130524
DOCDB simple family (application)
EP 2009052719 W 20090309; AT 09720794 T 20090309; BR PI0909434 A 20090309; CN 200980108655 A 20090309; EP 09720794 A 20090309; EP 11163456 A 20090309; ES 09720794 T 20090309; ES 11163456 T 20090309